how is sickle cell anemia an example of a pleiotropy?

A;sickle cell is caused by a pair of genes present on diffrent loci of the same chromosome

B:sickle cell anemia shows a continuous variation in the population

C: sickle cell allelles affect various organ systems, such as the circulitory and respitory systems

Question

how is sickle cell anemia  an example of a pleiotropy? 

A;sickle cell is caused by a pair of genes present on diffrent loci of the same chromosome

B:sickle cell anemia shows a continuous variation in the population

C: sickle cell allelles affect various organ systems, such as the circulitory and respitory systems

anonymous · Answer

One gene affects many phenotypes. So the answer is.....